<template>
  <div>
   <div class="search">
     <input v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音">
     <div class="search-content"
     ref="search"
     v-show="keyword">
       <ul>
         <li class="search-item border-bottom"
         v-for="item of list"
         :key="item.id"
          @click="handleCityClick(item.name)"
         >
         {{item.name}}
         </li>
         <li class="search-item border-bottom" v-show="!list.length">没有找到匹配数据</li>
       </ul>
     </div>
   </div>
  </div>
</template>

<script>
import BScroll from 'better-scroll'
export default {
  name: 'CitySearch',
  props: {
    cities: Object
  },
  data () {
    return {
      keyword: '',
      list: [],
      timer: null
    }
  },
  methods: {
    handleCityClick (city) {
      this.$store.commit('changeCity', city)
      this.$router.push('/')
    }
  },
  watch: {
    keyword () {
      if (this.timer) {
        clearTimeout(this.timer)
      }
      if (!this.keyword) {
        this.list = []
        return
      }
      this.timer = setTimeout(() => {
        const result = []
        for (let i in this.cities) {
          this.cities[i].forEach((value) => {
            if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
              result.push(value)
            }
          })
        }
        this.list = result
      })
    }
  },
  mounted () {
    this.scroll = new BScroll(this.$refs.search)
  }
}
</script>

<style lang='stylus' scoped>
.search{
  height: .72rem;
  background: #00bcd4;
  padding: 0 .1rem;
}
.search-input{
  height: .62rem;
  line-height: 62rem;
  width: 100%;
  text-align: center;
  border-radius: .06rem;
  color: #666;
  box-sizing: border-box;
  padding: 0 .1rem;
}
.search-content{
  z-index:1;
  position: absolute;
  overflow: hidden;
  top:1.58rem;
  left: 0;
  right: 0;
  bottom: 0;
  background: #eee;
}
</style>
